1316077643 has 2 divisors, whose sum is σ = 1316077644. Its totient is φ = 1316077642.

The previous prime is 1316077603. The next prime is 1316077649. The reversal of 1316077643 is 3467706131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1316077643 - 2²⁶ = 1248968779 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1316077597 and 1316077606.

It is not a weakly prime, because it can be changed into another prime (1316077649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 658038821 + 658038822.

It is an arithmetic number, because the mean of its divisors is an integer number (658038822).

Almost surely, 2^1316077643 is an apocalyptic number.

1316077643 is a deficient number, since it is larger than the sum of its proper divisors (1).

1316077643 is an equidigital number, since it uses as much as digits as its factorization.

1316077643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63504, while the sum is 38.

The square root of 1316077643 is about 36277.7844279388. The cubic root of 1316077643 is about 1095.8736986941.

The spelling of 1316077643 in words is "one billion, three hundred sixteen million, seventy-seven thousand, six hundred forty-three".